ERGOMETER WITH FEEDBACK TO LOAD OR WITH FEEDBACK COMPARISON:
Cross-reference art collection of documents relating to exercise apparatus which measures the amount of work done by a muscle under a controlled condition and then transmits it to a resistance applying structure or to structure which will evaluate it relative to another amount.
SEE OR SEARCH THIS CLASS, SUBCLASS:
1+, for exercise apparatus having a specific electrical feature which often includes feedback to a load applying device or with feedback comparison.
SEE OR SEARCH CLASS
600, Surgery, particularly
300+, for a diagnostic testing device used for the medical evaluation of the condition of a living body by a diagnostician.